althoff



arch L8, 1938 A. ALTHOFF 2,110,641

- COMBINATION HEATING AND COOKING STOVE Filed Feb. 1, 1935 3Sheets-Sheet 1 uHnUnHuD 0 0 o o 0 0 0 0 0 0' o n H o o 0 m 45 o o o o oo o o o o k 00 oo oo oo oo 0 O O O O upyw zzwyzw March 8, 1938. ALTHOFF2,110,641

COMBINATION HEATING AND COOKING STOVE Filed Feb. 1, 1935 3 Sheets-Sheet2 we. I

March 8, 1938.

L. A. ALTHOFF Filed Feb. 1, 1955 I5 Sheets-Sheet 5 29 J6 g r A r V 1'942 4a 46 41 J4 1 iii 44 1 I H Wm 29 O f J5 a? F W "H g M l'l |l., J36

1 L L 7 I p 24 23' 495 \2? j j Patented Mar. 8, i938 z ne PATENT OFEQECOMBINATION HEATING AND COOKING STOVE Lawrence A. Althoff, Chicago, Ill.

Application February 1, 1935, Serial No. 4,565

3 Claims.

This invention relates to a combination heating and cooking stove andmay be employed in connection with a single unit as illustrated hereinor in combination with a cooking range or other form of stove.

A primary object of the invention is to provide a heater and cookingstove which is compactly and attractively constructed, and which may beoperated with efliciency and with a modicum of effort. Other specificobjects and advantages will appear as the specification proceeds.

The invention is illustrated, in a preferred embodiment, by theaccompanying drawings, in which Figure 1 is a front view in elevation ofa stove construction embodying my invention, the top cover and frontdoor being shown in open position; Fig. 2, a side vie-w in elevation,the front door being closed and top cover being partially raised; Fig.3, a top plan view, the top cover being partially broken away; Fig. 4, asectional view, the section being taken as indicated at line 4 of Fig.2; Fig. 5, a bottom plan detail view; and Fig. 6, a sectional view, thesection being taken 25 as indicated at line 6 of Fig. 1; and Fig. '7, asectional detail view of a modified form of the invention.

In the illustration given, I provide an angle iron base ill supportedupon legs ll. Clamped between the legs ii and the angle iron base It]are the lower turned edges of metal side walls I2. The rear wall l3rests upon the base Ill as shown more clearly in Fig. 6, and is providedwith an aperture it through which the outlet flue I5 extends.

The front of the range is provided with side frame pieces it and a doorll is hinged to the side frame piece it. It will be observed that thedoor does not extend to the top of the outer frame casing, butterminates at. a point substantially flush with the inner stove top. Atop cover member l8, hingedly connected at its rear end, is provided atits front end with a depending wall I!) adapted to meet substantiallythe top of the door ll. The top cover it is preferably provided with airoutlet openings 20, and the side walls l2 are also provided near theirtop with air openings M.

The inner stove is preferably a unitary structure resting upon the angleiron frame H0. The structure may be of cast iron or any other suitableconstruction. As shown more clearly in Figs. 4 and 6, the bottom wall 22is provided at its forward end with a depending flange 23 which restsupon the angle iron in. The rear end of the bottom wall 22 is secured tothe rear wall l3 by flanges 24. The bottom wall is provided near itsforward end with a depending box 25 having air openings 26 thereincontrolled by the perforated plate 21 which is slidably secured to box25 by screws 28 which engage slots 29 in plate 21. A pivoted bar 30 isprovided with a handle 3| extending to the front of the stove andproviding a means for controlling the inlet of air.

The bottom plate 22 is supported above the base It and the bottom wallof box 25 so as to provide an air space therebetween. The plate isprovided with air openings 33 just above the box 25 to permit air topass from the box upwardly along the sides 34 of the inner stove. Spacedinside of the walls 36 are air inlet walls 35 which, together with walls34, provide an air space directly above the slots 33. An ash hopper 0rbin 36 is slidably supported inside of walls 35 and upon the plate 22.ecured to the side walls 34 directly above the walls 35 are downwardlyand inwardly inclined baffles or guides 37. The baflles 3i are spacedsufficiently above the walls 35 to permit air to pass under the innerfree ends of the baffles and then upwardly through the grate.

The grate 38 of well known construction is supported above ba-flles 37!,and a fire-box 39 also of well known construction is supported uponmembers 40 which are secured to the walls 34 and which also form aportion of the grate. In View of the well known construction of thefire-box and grate, a detailed description will not be given.

The rear top wall of the inner stove is adapted to serve as a cookingtop and is provided with a removable circular top ll. The forward end ofthe stove top is in the form of a lift door 42 which is hinged at itsrear side to an intermediate portion 43 of the stove top. The forwardend of door lZ engages a front beam or bar M which serves as a rest forthe coal scuttle when the door 42. is raised. The fire-box 39 is alsoprovided with the usual door closing the front side of the fire-box.

In order to support the top cover it), I provide a latch member 36 whichis provided with notches adapted to engage the lug i'l carried by theouter stove frame, as shown more clearly in Fig. 3.

In the operation of the stove, the required amount of air may beadmitted through the bottom air box 25 by sliding the damper plate 27 tothe desired position. The air enters, as shown more clearly in Fig. 4,through the apertures 26 and then through slots 33 in plate 32. The airpasses upwardly through passages formed by walls 34 and 35 and theninwardly under bafiies 31. The prewarrned air then passes through thebottom of grate 38 and directly into firebox 39. If desired, openingsmay be provided in the lower portion of side walls 34 adjacent the walls35 for allowing the admission of air to the inner stove, but I prefernot to have the air enter at a point thereabove. The inwardly turnedbaffles 3'! prevent the air passages from being clogged with ashes andat the same time, direct the ashes into the hopper 35. The air outsideof the inner stove enters at the bottom of the range and passes alongthe sides I2 in contact with the heated walls 34 of the inner stove. Theair then passes out of openings 23 at the top of the range and sideopenings 2|.

When the top cover I8 is in lowered position and the front door I1 isclosed, the inner stove is completely hidden from View and the entirestructure functions efficiently as a heating stove. When the cover [8 israised, the top of the inner stove is exposed and the cooking top may beused. When it is desired to replenish the coal supply, the front top 42may be raised to a position slightly tilting rearwardly, at whichposition it maintains itself, and a scuttle of coal may be raised sothat the neck thereof rests upon beam 44. In this manner, coal may bereadily and quietly fed into the fire-box. With the constructionillustrated, the top cover of the range is supported at a suitabledistance above the heated top of the stove so as to prevent injurythereto from the heat, while at the same time, the stove 42 is renderedreadily accessible for replenishing the coal supply. It will be observedthat the depending wall IQ of the top cover l8 terminates substantiallyin line with thecross beam 44.

In the modification shown in Fig. '7, the cover 48 is dividedintermediate its length and provided with a hinge 49. The forward end ofthe cover 48 is equipped with a perforated lug 50 adapted to receive oneend of a hook 5|. The other end of the hook engages a metal loop 52secured to the lift-cover 53. With this construction, the cover 48 andlift-top 53 may be lifted simultaneously with one hand when it isdesired to introduce coal into the fire-box below the lifttop 53.

While in the foregoing illustrated description, I have set forth aspecific preferred structure, it will be understood that considerablevariation may be made in the details of construction without departingfrom the spirit of my invention. The foregoing detailed description hasbeen given for clearness of understanding only, and no unnecessarylimitations should be understood therefrom, but the appended claimsshould be construed as broadly as permissible, in View of the prior art.

I claim:

1. In a structure of the character set forth, an inner stove, asheath-casing extending about the sides and above the top of said stove,said sheathcasing being open at its bottom and spaced from the sides ofsaid stove, a front casing wall extending up to a point adjacent the topof said stove, a cover hingedly connected at its rear end to saidcasing, and a front wall portion attached to said cover and dependingperpendicularly from the front end thereof.

2. In a structure of the character set forth, an inner stove, asheath-casing extending about the sides and above the top of said stove,said sheathcasing containing an opening in its bottom and being spacedfrom the sides of said stove, a front casing wall extending up to apoint adjacent the top of said stove, a cover flush with the top of saidsheath-casing and hingedly connected thereto, and a front wall portionattached to said cover and depending from the front end thereof, thesides of said front wall portion being flush with the sides of saidcover.

3. In a structure set forth, a base supported by legs, an inner stovestructure supported on said base, and an outer casing about said innerstove structure, said casing having a pivoted cover extending at a spacedistance above the top of said inner stove structure, said cover havinga depending front wall with its lower edge substantially aligned withthe top of said inner stove structure, said stove structure and outercasing providing an uninterrupted air passage from the bottom to the topof said casing.

LAWRENCE A. ALTI-IOFF.

